Improvement in tinners  machines



P. l. BAMBACH. Tinners Machines.

Patented June 9,1874.

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piggy l n Z f K STATES VPHILIP J. `DAMBACH,

PATENT OFFICE.

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.IMPROVEMENT IN TINNERS MACHINES."

Specification forming part of Letters Patent No.v15l, 57, dated June 9, 1874; application filed September I20, 1S73.

To all whom it may concern:

Be it known that I, PHILIP J. DAMBACH, of Shawnee, in the county of Perry and State of Ohio, have invented a new and valuable Improvement in Seaming-Machines; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings making a part of this specification, and to the letters and figures of reference marked thereon.

Figure l ofthe drawings is a representation of a side view of my seaming-machine, partly sectioned. Fig. 2 is a view of the standard for circular shears.

This invention relates to an improved machine which is. designed for tinners use in shearing and double-seaming circular work, as will be hereinafter described and claimed.

In the accompanying drawing', A represents the base of the supporting-frame A', which is adapted for being secured upon a table or bench, and which has a cruciform groove, a., formed horizontally into it, for receiving and holding in place an'adjustable standard, G. Rising from one end of the base A is a fixed standard-bracket, B, which affords bearings for the horizontal shafts C E. The shaft C is supported in vertically-adjustable bearin gs c o1, which are applied in grooves formed in the overhanging portion of the standardbracket B. On one end of this shaft C is keyed a large spur-wheel, C1, to which a crankhandle, C2, is applied, and on the adjustable end of this shaft a circular disk, D, is keyed, having a rabbet, d, in its periphery, as shown in Fig. l. The bearings o o1 rest on springs s s, and are held Ydown by means of cranked adjusting screws c2. The shaft E carries on one end a spur-wheel, E1, and on the opposite shaft E2 is keyed a circular cutter, F', which is held in cutting position with the'circular cutter F by means of a spring, N, one end of which bears against a standard, g, and the other end against a iiange, h, on the shaft E2, as shown in Fig. l. The rabbeted disk D operates in conjunction with a horizontal disk, D', for-turnin g the edges of the tin and forming the double seams. The disk D' is keyed on the upper end of a shaft, G', which is stepped in a standard, G, rising vertically from the base A, and applied thereto by an inverted T-shaped tenon fitting into the groove a. By means of a setscrew, h, tapped into in any position desired, so as to bring the disks into proper relation one with the other for double-seaming the edges of the metal.

Fig. 2 represents a device for holding' the metal sheets while they are being cut circular by the cutters or shears F F'. This device consists of a C-shaped frame, H, having a T- shaped tenon, a', formed on its bottom edge, which is adapted to fit into the groove a in base A. This frame H affords bearings for the shafts I u' of two circular clamps, u u. The shaft of the lower clamp u is stepped into the lower base portion of the frame H, and the shaft I of the upper clamp is held by the upper overhanging portion of frame H. A spring, S, is coiled around the shaft I, and a crankscrew, t, is applied so as to act on the upper end of this shaft I. The spring S lifts the clamp u free from the lower clamp, and the screw t is used to force the upper clamp down upon a sheet of metal placed between the two clamps to be trimmed circular. Into one side of the frame H a pointer, i, is fixed, and on the corresponding vertical side of the frame A an index-scale, y, is marked off, which, with the pointer r, indicates the given diameter of the plates required to be sheared, and allows the clamps and their frame to be quickly adjusted accordingly.

The operation is as follows: The standard G is removed from the frame A, and the frame H adjusted in this frame according to the diameter of the sheets required. The frame H is then fixed by the set-screw h, and the sheets out circular by giving rotation to the 4shears F F', as described. To double-seam the circular sheets thus prepared with their cylinders, the frame H is removed, and the standard G applied in its place and fixed in proper position for the double-seamers-D D' to perthe base A, the standard G can be rigidly fixed form their work by lappingl the edges of the metal.

It will be seen from the above that in a single supporting-frame, A, I combine shearingcutters for trimming the sheets of metal eircular, and of any given diameter, and that I also combine therewith circular seamers, the rabbeted one of which is applied on a shaft which is vertically adjustable, and the plainedged one of which is supported in a standard which can be readily removed from the said frameA when it is desired to apply therein the frame which carries the sheet-clamps.

What I claim as new, and desire to secure by Letters Patent, is-

hereunto subscribed my name in the presence of two witnesses. l

v PHILIP J. BAMBACH.

Witnesses:

E. P. ABBOT, s W. R. WILLIAMs. 

